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등록 역호혼성 바이트를 이용한 DTV 수신 장치 및 그 방법

역호혼성 바이트를 이용한 DTV 수신 장치 및 그 방법
이미지 확대
발명자
이재영, 김승원, 지금란, 김성훈, 안치득, 이수인
출원번호
10594466 (2005.04.01)
공개번호
20070208987 (2007.09.06)
등록번호
7712011 (2010.05.04)
출원국
미국
협약과제
초록
Provided are a Vestigial Side Band (VSB) digital television (DTV) receiver based on is A/53 of the Advanced Television System Committee (ATSC) that can secure backward compatibility of a low-ranked DTV receiver by using parity bytes added to robust data for error correction and obtain RS coding gain from the robust data, and a method thereof. The DTV receiver includes: a receiving unit for receiving a transmission signal including general data and robust data and converting the transmission signal into a base-band signal; an equalizer for determining a symbol level of the transmission signal; a trellis decoder for performing trellis decoding on a symbol of the determined level; a nonsystematic Reed Solomon (NRS) decoder for performing NRS decoding on the trellis-decoded robust data and correcting an error; and a restoring unit for restoring a digital video data stream with respect to the trellis-decoded general data and the NRS-decoded robust data.
KSP 제안 키워드
Backward compatibility, Coding Gain, Data stream, Error Correction, RS coding, Reed Solomon(RS), Robust data, Side band, Television system, Vestigial side band(VSB), Video data, digital television(DTV), digital video